GB/T 10870-2014 English PDF (GBT10870-2014)

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GB/T 10870-2014: The methods of performance test for water chilling (heat pump) packages using the vapour compression cycle [including 2015XG1]
GB/T 10870-2014
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 27.200
J 73
Replacing GB/T 10870-2001
The methods of performance test for water chilling
(heat pump) packages using the vaper compression
cycle
[Including Amendment 2015XG1]
ISSUED ON: JUNE 24, 2014
IMPLEMENTED ON: DECEMBER 31, 2014
Issued by: General Administration of Quality Supervision, Inspection and
Quarantine;
Standardization Administration of PRC.
Table of Contents
Foreword ... 3 
1 Scope ... 4 
2 Normative references ... 4 
3 Terms and definitions ... 5 
4 Test requirements ... 6 
5 Test method ... 9 
6 Test deviation ... 17 
7 Gross electric power ... 18 
8 Evaluation of the coefficient of performance ... 19 
9 Example of performance uncertainty analysis ... 20 
Appendix A (Normative) Heating performance test requirements for air-cooled
and evaporative-cooled chilling water (heat pump) packages ... 21 
Appendix B (Normative) Air inlet temperature measurement of air-cooled and
evaporative-cooled chilling water (heat pump) packages ... 28 
Appendix C (Normative) Provisions on the type and accuracy of test
instruments ... 33 
Appendix D (Normative) The measurement and calculation of the input power
of the compressor, oil pump, fan and water pump ... 35 
Appendix E (Informative) Example of uncertainty analysis of cooling
performance measurement of water-cooled water chilling package ... 38 
No.1 Amendment [2015XG1] ... 46 
The methods of performance test for water chilling
(heat pump) packages using the vaper compression
cycle
1 Scope
This standard specifies the terms and definitions, test provisions, test methods,
test deviations, gross electric power, evaluation of performance coefficients, etc.
of the main performance parameters of chilling water (heat pump) packages
driven by electric motors using vapor compression refrigeration cycles.
This standard applies to the performance test of chilling water (heat pump)
packages (hereinafter referred to as "packages") driven by electric motors that
use vapor compression refrigeration cycles. The cooling tower integrated
package, brine package, glycol package, etc. can be implemented with
reference to this standard.
2 Normative references
The following documents are essential to the application of this document. For
the dated documents, only the versions with the dates indicated are applicable
to this document; for the undated documents, only the latest version (including
all the amendments) is applicable to this standard.
GB/T 2624.1 Measurement of fluid flow by means of pressure differential
devices inserted in circular cross-section conduits running full - Part 1:
General principles and requirements
GB/T 2624.2 Measurement of fluid flow by means of pressure differential
devices inserted in circular cross-section conduits running full - Part 2:
Orifice plates
GB/T 2624.3 Measurement of fluid flow by means of pressure differential
devices inserted in circular cross-section conduits running full - Part 3:
Nozzles and Venturi nozzles
GB/T 2624.4 Measurement of fluid flow by means of pressure differential
devices inserted in circular cross-section conduits running full - Part 4:
Venturi tubes
Under the specified heating capacity test conditions, the ratio of the
package's heating capacity to the gross electric power of heating, expressed
in W/W.
4 Test requirements
4.1 General rules
4.1.1 Eliminate the non-condensable gas in the refrigeration system of the
package and confirm that there is no refrigerant leakage.
4.1.2 There shall be enough refrigerant in the refrigeration (heating) system of
the package (according to the requirements of the instruction manual). If the
refrigerant is a mixed working fluid, it shall ensure its composition and
constitution; it shall maintain the amount of lubricating oil for normal operation
in the compressor.
4.1.3 The test system shall be equipped with thermometer casing and pressure
gauge outlet joints.
4.1.4 The test equipment and instruments used in the test shall not hinder the
normal operation and operation of the package.
4.1.5 The water side of the package which uses side heat exchanger, heat
exchanger on the heat source side and oil cooler shall be cleaned.
4.1.6 The water quality used by the package shall meet the requirements of GB
50050.
4.1.7 The test environment of air-cooled and evaporative cooling packages
shall be sufficiently spacious. The air velocity at a distance of 0.5 m from the
package shall not be greater than 2 m/s.
4.2 Test requirements
4.2.1 The performance test of the water-cooled package shall include the main
test and the verification test, both of which shall be measured at the same time.
When the air-cooled and evaporative cooling package are subjected to the main
test, two sets of instruments shall be used for simultaneous measurement.
During the performance test of the package, a set of measuring instrument
interfaces shall be reserved at the corresponding measuring point for third-party
testing.
The verification test is only applicable to water-cooled packages. The air-cooled
and evaporative cooling packages are not subject to verification test.
- Liquid refrigerant flow meter method (see 5.3).
4.3.3 The air inlet temperature measurement of air-cooled and evaporative-
cooled packages shall be carried out in accordance with Appendix B.
4.4 Test parameters
During the test, the test parameters are executed in accordance with the
provisions of GB/T 18430.1 or GB/T 18430.2.
4.5 Instrumentation
4.5.1 Test instruments and meters shall be qualified by the statutory
metrological inspection department and within the validity period.
4.5.2 The type and accuracy of test instruments and meters shall be in
accordance with Appendix C.
4.6 Test data
4.6.1 Generally, the data to be recorded are:
- Test date, location and personnel;
- Package model and exit-factory number;
- Power supply voltage and frequency;
- The gross electric power of the package;
- Cold (hot) water inlet and outlet temperature at user side;
- Cold (hot) water volume flow at user side;
- Pressure drop at water inlet and outlet side at user side;
- Refrigerant, lubricating oil and its filling volume;
- Atmospheric pressure and ambient temperature;
- Instructions for heat exchanger insulation at user side.
4.6.2 For water-cooled packages, it shall also record:
- Water inlet and outlet temperature on the heat source side;
- Water volume flow on the heat source side;
- The pressure drop on the inlet and outlet side of the heat source.
QI,r - The correction term of heat as released from the refrigerant side of the
heat exchanger on the heat source side to the ambient air, in watts (W);
QII - The total heat released (absorbed) by auxiliary equipment such as the
oil separator and oil cooler from the compressor to the condenser segment
to the ambient air, in watts (W);
P - The input power of the compressor motor, oil pump motor, electric heater,
etc. of the water-cooled package, in watts (W);
Qr,r - The correction term of the heat as introduced from ambient air into the
refrigerant side of the heat exchanger on the user side, in watts (W);
Kf - The heat transfer coefficient between the outer surface of the above
auxiliary equipment and the ambient air, in watts per square meter Celsius
[W/(m2·°C)];
Af - The external surface are...